5CSM

YEAST CHORISMATE MUTASE, T226S MUTANT, COMPLEX WITH TRP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.186 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Mechanisms of catalysis and allosteric regulation of yeast chorismate mutase from crystal structures.

Strater, N.Schnappauf, G.Braus, G.Lipscomb, W.N.

(1997) Structure 5: 1437-1452

  • DOI: 10.1016/s0969-2126(97)00294-3
  • Primary Citation of Related Structures:  
    3CSM, 4CSM, 5CSM

  • PubMed Abstract: 
  • Chorismate mutase (CM) catalyzes the Claisen rearrangement of chorismate to prephenate, notably the only known enzymatically catalyzed pericyclic reaction in primary metabolism. Structures of the enzyme in complex with an endo-oxabicyclic transition state analogue inhibitor, previously determined for Bacillus subtilis and Escherichia coli CM, provide structural insight into the enzyme mechanism ...

    Chorismate mutase (CM) catalyzes the Claisen rearrangement of chorismate to prephenate, notably the only known enzymatically catalyzed pericyclic reaction in primary metabolism. Structures of the enzyme in complex with an endo-oxabicyclic transition state analogue inhibitor, previously determined for Bacillus subtilis and Escherichia coli CM, provide structural insight into the enzyme mechanism. In contrast to these bacterial CMs, yeast CM is allosterically regulated in two ways: activation by tryptophan and inhibition by tyrosine. Yeast CM exists in two allosteric states, R (active) and t (inactive).


    Related Citations: 
    • Crystal Structure of the T State of Allosteric Yeast Chorismate Mutase and Comparison with the R State
      Strater, N., Hakansson, K., Schnappauf, G., Braus, G., Lipscomb, W.N.
      (1996) Proc Natl Acad Sci U S A 93: 3330
    • Location of the Active Site of Allosteric Chorismate Mutase from Saccharomyces Cerevisiae, and Comments on the Catalytic and Regulatory Mechanisms
      Xue, Y., Lipscomb, W.N.
      (1995) Proc Natl Acad Sci U S A 92: 10595
    • The Crystal Structure of Allosteric Chorismate Mutase at 2.2-A Resolution
      Xue, Y., Lipscomb, W.N., Graf, R., Schnappauf, G., Braus, G.
      (1994) Proc Natl Acad Sci U S A 91: 10814

    Organizational Affiliation

    Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CHORISMATE MUTASEA256Saccharomyces cerevisiaeMutation(s): 1 
EC: 5.4.99.5
UniProt
Find proteins for P32178 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P32178 
Go to UniProtKB:  P32178
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP32178
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TRP
Query on TRP

Download Ideal Coordinates CCD File 
B [auth A]TRYPTOPHAN
C11 H12 N2 O2
QIVBCDIJIAJPQS-VIFPVBQESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.186 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 94.6α = 90
b = 51.4β = 116.6
c = 66.8γ = 90
Software Package:
Software NamePurpose
XDSdata scaling
XDSdata reduction
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-01-14
    Type: Initial release
  • Version 1.1: 2008-03-25
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2021-11-03
    Changes: Database references, Derived calculations